• Yosuke Akamatsu, Kenichi Sato, Hidenori Endo, Yasushi Matsumoto, and Teiji Tominaga.
• Department of Neuroendovascular Therapy, Kohnan Hospital, Sendai, Japan.
• World Neurosurg. 2017 Aug 1; 104: 1046.e7-1046.e12.

BackgroundPatients with cavernous sinus dural arteriovenous fistulas (CS dAVFs) with cortical venous varix are indicated for aggressive treatment because of the associated risk for intracranial hemorrhage.Case DescriptionWe present a case of surgical transvenous embolization in an 84-year-old woman with CS dAVF who presented with massive intracerebral hematoma. Cerebral angiograms revealed the dural AVF drained only into the superficial middle cerebral vein. Because an emergent mass reduction and prevention of rebleeding were necessary, single-session hematoma removal and transcranial embolization of a CS dAVF were performed in the neurosurgical operating room, using a mobile C-arm fluoroscopy. After the right frontotemporal craniotomy, intracerebral hematoma was removed and coil packing of the affected cavernous sinus was successfully performed via the dilated superficial middle cerebral vein.ConclusionThe transcortical vein approach enables occlusion of CS dAVF with isolated cortical venous drainage and may be a valuable alternative approach for some cases needed emergency craniotomy.Copyright © 2017 Elsevier Inc. All rights reserved.

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